The purpose of the author to include the sentence is "to condemn the insincerity of his critics’ advice."
<h3 /><h3>What is a purpose?</h3>
A purpose can be defined as the intention of the writer behind something. It may be for a sentence, a word, or a phrase.
The sentence "Shallow understanding from people of good will is more frustrating than absolute misunderstanding from people of ill will" explains that a little understanding from the good will persons is more frustrating than being misunderstood from the ill will ones.
He included this sentence to critisize or condemn the insincerity of his critics’ advice. He feels that the critics pay less attention to the whole text and then give shallow advices.
Therefore the correct option is A.
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Dogs and cats and cows and cates
Rock and minerals are both considered to be natural substances and this is what they have in common.
I think you should try studying a little every day.
